Electronic vaporization device and heating element, vaporization core, and vaporizer thereof

ABSTRACT

A heating element for vaporization includes: a surface provided with a microgroove portion, the microgroove portion being arranged at least on one side of the heating element that is away from a preset liquid absorbing element, the microgroove portion having a microgroove, an opening of the microgroove being connected with the preset liquid absorbing element. The heating element is connectable with the preset liquid absorbing element to heat and vaporize to-be-vaporized liquid.

CROSS-REFERENCE TO PRIOR APPLICATION

This application is a continuation of International Patent Application No. PCT/CN2020/116295, filed on Sep. 18, 2020. The entire disclosure is hereby incorporated by reference herein.

FIELD

The application relates to the technical field of electronic vaporization devices, and in particular, to an electronic vaporization device and a heating element, a vaporization core, and a vaporizer thereof.

BACKGROUND

An electronic vaporization device may heat to-be-vaporized liquid by using a heating wire, so that the to-be-vaporized liquid is released after vaporization, which has been widely used in daily life.

In the related art, when the heating wire of the electronic vaporization device heats the to-be-vaporized liquid, a problem of large fluctuations of a temperature field caused by high instability during a boiling process of the to-be-vaporized liquid and high randomness of generation positions of bubbles generally occur.

SUMMARY

In an embodiment, the present invention provides a heating element for vaporization, comprising: a surface provided with a microgroove portion, the microgroove portion being arranged at least on one side of the heating element that is away from a preset liquid absorbing element, the microgroove portion comprising a microgroove, an opening of the microgroove being connected with the preset liquid absorbing element, wherein the heating element is configured to be connected with the preset liquid absorbing element to heat and vaporize to-be-vaporized liquid.

BRIEF DESCRIPTION OF THE DRAWINGS

Subject matter of the present disclosure will be described in even greater detail below based on the exemplary figures. All features described and/or illustrated herein can be used alone or combined in different combinations. The features and advantages of various embodiments will become apparent by reading the following detailed description with reference to the attached drawings, which illustrate the following:

FIG. 1 is a schematic structural diagram of an embodiment of a vaporization core according to this application;

FIG. 2 is an exploded view of the vaporization core shown in FIG. 1 ;

FIG. 3 is a cross-sectional view of the vaporization core shown in FIG. 1 ;

FIG. 4 is a schematic structural diagram of an embodiment of a heating wire forming a heating element shown in FIG. 2 ;

FIG. 5 is a cross-sectional view of an implementation of the heating wire shown in FIG. 4 ;

FIG. 6 is a cross-sectional view of another implementation of the heating wire shown in FIG. 4 ;

FIG. 7 is a schematic structural diagram of another embodiment of a straight portion of a heating wire forming a heating element shown in FIG. 2 ;

FIG. 8 is a cross-sectional view of a heating wire of the heating element shown in FIG. 7 ;

FIG. 9 is a schematic structural diagram of another embodiment of a vaporization core according to this application;

FIG. 10 is a partial enlarged view of an embodiment of a heating wire forming a heating element shown in FIG. 9 in a region II;

FIG. 11 is a partial enlarged view of another embodiment of a heating wire forming a heating element shown in FIG. 9 in a region II;

FIG. 12 is a schematic structural diagram of an embodiment of a heating element in the vaporization core shown in FIG. 9 ;

FIG. 13 is a schematic structural diagram of another embodiment of a heating element in the vaporization core shown in FIG. 9 ;

FIG. 14 is a schematic structural diagram of a portion of a heating wire of a heating element in the related art;

FIG. 15 is a schematic diagram of performing heating and vaporization by using a heating element in the related art;

FIG. 16 a to FIG. 16 c are schematic diagrams of changes of a vaporization effect when heating and vaporization are performed by using a heating element in the related art;

FIG. 17 is a schematic structural diagram of a portion of a heating wire of a heating element according to this application;

FIG. 18 is a partial enlarged view of the heating wire provided in FIG. 17 ;

FIG. 19 is a schematic diagram of performing heating and vaporization by using a heating element according to this application;

FIGS. 20 a to 20 c are schematic diagrams of changes of a vaporization effect when heating and vaporization are performed by using a heating element according to this application;

FIGS. 21 a to 21 c are schematic diagrams of changes of a vaporization effect when heating and vaporization are performed by using another heating element according to this application;

FIG. 22 is a schematic structural diagram of an embodiment of a vaporizer according to this application; and

FIG. 23 is a schematic structural diagram of an embodiment of an electronic vaporization device according to this application.

DETAILED DESCRIPTION

In an embodiment, the present invention provides a portable base station and a portable vehicle, which can meet requirements of different application scenarios such as base station transportation, carrying, and station construction.

In an embodiment, the present invention provides an electronic vaporization device and a heating element, a vaporization core, and a vaporizer thereof to resolve the foregoing technical problem.

In an embodiment, the present invention provides a heating element for vaporization, where the heating element is configured to be connected with a preset liquid absorbing element, to heat and vaporize to-be-vaporized liquid provided by the liquid absorbing element; and

a surface of the heating element is provided with a microgroove portion, where the microgroove portion is arranged at least on one side of the heating element that is away from the liquid absorbing element, the microgroove portion includes a microgroove, and an opening of the microgroove is connected with the liquid absorbing element.

Optionally, the microgroove is a groove provided on the surface of the heating element; or

the microgroove portion is at least two protrusions arranged on the surface of the heating element, and the microgroove is formed between two adjacent protrusions.

Optionally, the heating element is a metal wire;

the microgroove is an arc-shaped groove provided on the surface of the metal wire; or

the microgroove is a linear groove provided on the surface of the metal wire.

Optionally, the microgroove is an arc-shaped groove provided on the surface of the metal wire;

the arc-shaped groove is an annular groove provided on the surface of the metal wire; or

the arc-shaped groove is a spiral groove provided on the surface of the metal wire.

Optionally, the microgroove is a linear groove provided on the surface of the metal wire;

the extending direction of the linear groove is perpendicular to the length direction of the metal wire; or

the extending direction of the linear groove is parallel to the length direction of the metal wire, and the metal wire is bent at the end portion of the linear groove.

Optionally, a plurality of microgroove portions are arranged, and the plurality of microgroove portions are arranged at intervals sequentially along the length direction of the metal wire.

Optionally, each of the plurality of microgroove portions is provided with a plurality of microgrooves provided in parallel at intervals, and the width of the microgroove portion is 3 to 5 times of the width of the microgroove.

Optionally, a distance between two adjacent microgroove portions is 5 to 8 times of the width of the microgroove portion.

Optionally, the depth of the microgroove ranges from 5 um to 15 um, and the width of the microgroove ranges from 5 um to 30 um.

Optionally, the cross section of the microgroove is triangular, rectangular, trapezoidal, semicircular, or elliptical.

To resolve the foregoing technical problem, a technical solution adopted by this application is: A vaporization core is provided, where the vaporization core includes a liquid absorbing element and the heating element according to any one of the above, where

the liquid absorbing element includes a vaporization surface and a liquid absorbing surface, the liquid absorbing element is configured to allow to-be-vaporized liquid to enter from the liquid absorbing surface and to reach the vaporization surface after passing through the liquid absorbing element;

the heating element is connected with the liquid absorbing element, and the heating element is arranged on one side of the vaporization surface for heating and vaporizing the to-be-vaporized liquid passing through the vaporization surface; and

the microgroove portion is arranged at least on one side of the heating element that is away from the vaporization surface, the microgroove portion includes a microgroove, and an opening of the microgroove is connected with the vaporization surface.

Optionally, the liquid absorbing element is provided with a vaporization hole, and the vaporization surface is arranged on the inner wall of the vaporization hole; and

the heating element is a spirally coiled metal wire, and is fixedly connected with the inner wall of the vaporization hole.

To resolve the foregoing technical problem, a technical solution adopted by this application is: A vaporizer is provided, where the vaporizer includes a vaporization sleeve, a mounting base, and a vaporization core, and the vaporization core is the vaporization core described above.

To resolve the foregoing technical problem, a technical solution adopted by this application is: An electronic vaporization device is provided, where the electronic vaporization device includes:

a vaporizer, where the vaporizer is configured to store to-be-vaporized liquid and vaporize the to-be-vaporized liquid to form vapor inhalable by a user, and the vaporizer is the vaporizer described above; and

a body component, configured to supply power to the vaporizer.

The beneficial effects of this application are as follows: In this application, by providing a microgroove on a heating element, when the heating element heats and vaporizes to-be-vaporized liquid, the to-be-vaporized liquid may more easily form a nucleation site, increasing the nucleation site during a vaporization process, and reducing the heat flux during the vaporization process, so that bubbles formed by the nucleation site may grow out of the microgroove structure, and separate from the liquid film surface of the to-be-vaporized liquid. In this way, through the arrangement of microgrooves, the characteristic of boiling during the vaporization process may be controlled, and the mechanism of aerosol formation may be controlled (that is, the location of aerosol formation and the size of the aerosol may be controlled), so that the taste during vaporization may be effectively improved.

The technical solutions in embodiments of this application are clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are merely some rather than all of the embodiments of this application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the protection scope of this application.

It should be noted that all directional indications (for example, upper, lower, left, right, front, and rear) in the embodiments of this application are merely used for explaining relative position relationships, movement situations, or the like between various components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications change accordingly.

In addition, descriptions involving “first” and “second” in the embodiments of this application are merely intended for a purpose of description, and shall not be understood as an indication or implication of relative importance or implicit indication of a quantity of indicated technical features. Therefore, a feature defined by “first” or “second” may explicitly indicate or implicitly include at least one of the features. In addition, technical solutions between the embodiments may be combined with each other, provided that the combination of the technical solutions can be implemented by a person of ordinary skill in the art. When the combined technical solutions conflict with each other or cannot be implemented, it should be considered that such a combination of the technical solutions does not exist or is not within the protection scope of this application.

Referring to FIG. 1 to FIG. 3 , FIG. 1 is a schematic structural diagram of an embodiment of a vaporization core according to this application; FIG. 2 is an exploded view of the vaporization core shown in FIG. 1 ; and FIG. 3 is a cross-sectional view of the vaporization core shown in FIG. 1 .

The vaporization core 10 includes a liquid absorbing element 100 and a heating element 200. The vaporization core 10 may be configured to heat the to-be-vaporized liquid to vaporize the to-be-vaporized liquid.

A plurality of micropores are formed in the liquid absorbing element 100, and the to-be-vaporized liquid may enter the liquid absorbing element 100 through the micropores, or the to-be-vaporized liquid may also penetrate from one side of the liquid absorbing element 100 to the other side through the micropores. The plurality of micropores in the liquid absorbing element 100 may also store the to-be-vaporized liquid. The heating element 200 is partially embedded in the liquid absorbing element 100.

The liquid absorbing element 100 may be a sintered porous body, and specifically, the sintered porous body may be a ceramic porous body. It may be understood that in some other embodiments, the sintered porous body may not be limited to a ceramic porous body. For example, the sintered porous body may be a glass porous body or a glass ceramic porous body, and the material thereof may be any one or more of aluminum oxide, silicon oxide, silicon nitride, silicate, and silicon carbide. Alternatively, the liquid absorbing element 100 may be formed by fiber cotton.

The heating element 200 may be formed by any one of metal alloys such as iron-chromium alloy, iron-chromium-aluminum alloy, iron-chromium-nickel alloy, chromium-nickel alloy, titanium alloy, stainless steel alloy, and Karma alloy, or may be formed by mixture of at least two metal alloys thereof. The heating element 200 may be set to have a certain resistance value. By connecting the heating element 200 with a power supply, the heating element 200 can generate heat to heat and vaporize the to-be-vaporized liquid.

The shape and size of the liquid absorbing element 100 are not limited, and may be selected as required. The vaporization surface 1001 and the liquid absorbing surface 1002 of the liquid absorbing element 100 may be arranged on different surfaces of the liquid absorbing element 100; or the vaporization surface 1001 and the liquid absorbing surface 1002 may be arranged on different regions of the same surface of the liquid absorbing element 100.

In this embodiment, specifically, the entire liquid absorbing element 100 may be cylindrical, the liquid absorbing element 100 is provided with a vaporization hole 110 inside, and the heating element 200 is spirally arranged in the vaporization hole 110 and may be connected with the inner wall of the vaporization hole 110. The inner wall of the vaporization hole 110 may form the vaporization surface 1001, and the outer surface of the liquid absorbing element 100 may form the liquid absorbing surface 1002. The to-be-vaporized liquid may penetrate into the liquid absorbing element 100 from one side of the liquid absorbing surface 1002 of the liquid absorbing element 100 and may penetrate from the vaporization surface 1001, and the heating element 200 may be arranged at the position of the vaporization surface 1001 to heat and vaporize the to-be-vaporized liquid penetrating from the vaporization surface 1001.

Alternatively, in other implementations, the heating element 200 may also be arranged on the outer surface of the liquid absorbing element 100, the outer surface of the liquid absorbing element 100 may form the vaporization surface 1001, the inner wall of the vaporization hole 110 provided in the liquid absorbing element 100 may form the liquid absorbing surface 1002, and the mounting position of the heating element 200 and the positions of the vaporization surface 1001 and the liquid absorbing surface 1002 on the liquid absorbing element 100 may be arranged according to a specific requirement, which are not further limited herein.

Alternatively, in other implementations, the heating element 200 may be a cotton core, and the heating element 200 may be wound on the outer surface of the heating element 200.

In this embodiment, the heating element 200 may be provided with a microgroove portion 210, and the microgroove portion 210 may include at least one microgroove 2101, where an opening of the microgroove 2101 may be connected with the vaporization surface 1001, that is, the opening of the microgroove 2101 may be docked on the vaporization surface 1001, so that the to-be-vaporized liquid penetrating from the vaporization surface 1001 may enter the microgroove 2101.

Therefore, in this application, by providing a microgroove on a heating element, when the heating element heats and vaporizes to-be-vaporized liquid, the to-be-vaporized liquid may more easily form a nucleation site, increasing the nucleation site during a vaporization process, and reducing the heat flux during the vaporization process, so that bubbles formed by the nucleation site may grow out of the microgroove structure, and separate from the liquid film surface of the to-be-vaporized liquid. In this way, through the arrangement of microgrooves, the characteristic of boiling during the vaporization process may be controlled, and the mechanism of aerosol formation may be controlled (that is, the location of aerosol formation and the size of the aerosol may be controlled), so that the taste during vaporization may be effectively improved.

In this embodiment, the heating element 200 may be a heating wire, and the heating element 200 may be formed by spirally winding a strip-shaped heating wire.

Referring to FIG. 4 and FIG. 5 , FIG. 4 is a schematic structural diagram of an embodiment of a straight portion of a heating wire forming a heating element shown in FIG. 2 ; and FIG. 5 is a cross-sectional view of an implementation of the heating wire shown in FIG. 4 .

The heating wire 201 is provided with a plurality of microgroove portions 210, and the plurality of microgroove portions 210 may be arranged at intervals sequentially along the length direction of the heating wire 201. Each microgroove portion 210 may be provided with a plurality of microgrooves 2101. As shown in FIG. 5 , the microgroove 2101 may be an arc-shaped groove provided on the surface of the heating wire 201, where the arc-shaped groove refers to a groove whose bottom extends along an arc, and for example, the arc-shaped groove may be provided along the arc side surface of a cylindrical heating wire. The microgroove 2101 may also surround the surface of the heating wire 201 to form an annular groove.

Alternatively, referring to FIG. 6 , FIG. 6 is a cross-sectional view of another implementation of the heating wire shown in FIG. 4 . As shown in FIG. 6 , the microgroove 2101 may be provided on a portion of the surface of the microgroove 2101 to form a non-annular groove. Specifically, the microgroove 2101 may be provided in a direction extending from the middle part to the two ends of the microgroove, so that the depth of the microgroove 2101 is gradually reduced, and the two ends of the microgroove 2101 are not connected.

The extending direction of the microgroove 2101 may be set to be perpendicular to the length direction of the heating element 200; the extending direction of the microgroove 2101 may be set to be parallel to the length direction of the heating element 200; or the extending direction of the microgroove 2101 may be set to form a preset angle with the length direction of the heating element 200.

In this embodiment, a plurality of microgrooves 2101 are provided at intervals, and adjacent microgrooves 2101 are not in communication with each other. In other embodiments, one microgroove 2101 may be provided, the microgroove 2101 may be a continuous microgroove, and the microgroove 2101 may be provided spirally along the length direction of the heating element 200; or when the microgroove 2101 is spirally wound, two or more microgrooves 2101 may be provided, and in this case, the two or more microgrooves 2101 may be spirally wound on the heating wire 201 at intervals and staggered. Alternatively, when microgroove 2101 is spirally wound, the microgroove 2101 may not be continuous, that is, a spirally-wound microgroove 2101 may be arranged in each microgroove portion 210 arranged at intervals, and microgrooves 2101 in two adjacent microgroove portions 210 are not in communication with each other.

In the foregoing embodiments, the microgroove 2101 is a groove provided on the surface of the heating wire 201, where the microgroove 2101 may be formed by processing the surface of the heating wire 201 through laser processing or the like. In other implementations, the microgrooves 2101 may also be formed by arranging protrusions on the microgroove portion 210.

Specifically, referring to FIG. 7 and FIG. 8 , FIG. 7 is a schematic structural diagram of another embodiment of a straight portion of a heating wire forming a heating element shown in FIG. 2 ; and FIG. 8 is a cross-sectional view of a heating wire of the heating element shown in FIG. 7 .

At least two protruding portions 211 may be provided in the microgroove portion 210 of the heating element 200, and a microgroove 2101 may be formed between two adjacent protruding portions 211. In this implementation, the extending direction of the microgroove 2101 may be the same as that in the previous implementation, which is not repeated herein.

Similarly, as shown in FIG. 7 and FIG. 8 , the microgrooves 2101 may be arc-shaped grooves provided on the surface of the heating wire 201, and the microgrooves 2101 form annular grooves.

Alternatively, in other implementations, the microgrooves 2101 may also be provided on a portion of the surface of the microgrooves 2101 to form non-annular grooves, which is not repeated herein.

In the foregoing embodiment, the heating element 200 may be a metal heating wire, and the cross section of the heating element 200 may be circular, semicircular, or elliptical. In other embodiments, the heating element 200 may also be a metal heating sheet.

Further, as the foregoing embodiments, the microgrooves 2101 are annular grooves provided on the heating element 200.

In this embodiment, the microgrooves 2101 may be arc-shaped grooves, and the depths of two ends of the microgrooves 2101 may gradually decrease, that is, the microgrooves 2101 may be provided on a partial area of the heating element 200. In other embodiments, the microgrooves 2101 may be linear grooves, where the linear groove refers to a groove whose bottom extends along a straight line.

Referring to FIG. 9 , FIG. 9 is a schematic structural diagram of another embodiment of a vaporization core according to this application. The liquid absorbing element 100 may roughly form a cuboid as a whole, one side surface of the liquid absorbing element 100 may form the vaporization surface 1001 thereof, and another side surface of the liquid absorbing element 100 may form the liquid absorbing surface 1002 thereof. The heating element 200 may be at least attached to the vaporization surface 1001 of the liquid absorbing element 100. Specifically, the heating element 200 may be entirely attached to the vaporization surface 1001 of the liquid absorbing element 100, or the heating element 200 may be partially embedded in the liquid absorbing element 100 and arranged between the vaporization surface 1001 and the liquid absorbing surface 1002, and the other part of the heating element 200 is attached to the vaporization surface 1001 of the liquid absorbing element 100.

In this embodiment, the heating element 200 may be formed by a heating sheet or a heating strip. Specifically, the outer surface of the heating element 200 may include multiple planes, where the cross section of the heating element 200 may be a square, a rectangle, a trapezoid, or other polygons. Therefore, the linear microgrooves 2101 may be formed on at least one plane on the outer surface of the heating element 200.

Similarly, the heating element 200 being a linear heating wire is used as an example.

Referring to FIG. 10 , FIG. 10 is a partial enlarged view of an embodiment of a heating wire forming a heating element shown in FIG. 9 in a region II;

The heating wire 201 is a straight heating wire, which may be used to form the heating element 200 as shown in FIG. 9 .

In this embodiment, similarly, the microgroove 2101 may be a groove formed on the surface of the heating wire 201; or

the microgroove portion 210 may also include at least two protrusions arranged on the surface of the heating wire 201, and the microgroove 2101 is formed between two adjacent protrusions.

In this embodiment, the microgroove 2101 being the groove provided on the surface of the heating wire 201 is used as an example.

In each microgroove portion 210, the microgroove 2101 may be an annular groove. The microgroove 2101 may extend in a direction perpendicular to the length of the heating wire 201, and the linear microgrooves 2101 on two adjacent planes on the outer surface of the heating wire 201 may be connected to form an annular groove. In this case, the microgroove 2101 may be in a shape of a square.

Alternatively, the microgroove 2101 may be a non-annular groove.

Referring to FIG. 11 , FIG. 11 is a partial enlarged view of another embodiment of a heating wire forming a heating element shown in FIG. 9 in a region II.

Linear microgrooves 2101 are provided on a portion of the plane on the outer surface of the heating wire 201. For example, the microgrooves 2101 may be arranged on a flat surface on the outer surface of the heating wire 201. In this case, the heating element 200 formed by the heating wire 201 is used, the microgrooves 2101 on the heating element may be provided on one side of the heating element 200 outside the liquid absorbing element 100 and away from the liquid absorbing element 100, and the microgrooves 2101 may be in a shape of a stripe. Alternatively, the microgrooves 2101 may be provided on multiple planes on the outer surface of the heating element 200, and the microgrooves 2101 on two adjacent planes are connected, so that the microgrooves 2101 may be in a shape of “n” or “L”. Similarly, the opening of the microgroove 2101 may be docked to the vaporization surface 1001.

In this embodiment, similarly, the extending direction of the microgroove 2101 may be set to be perpendicular to the length direction of the heating element 200 (or the heating wire 201).

In other embodiments, the extending direction of the microgroove 2101 may also be set along other directions.

The heating element 200 with linear microgrooves is used as an example.

It should be noted that the heating element 200 described in the foregoing embodiments may be partially embedded on the vaporization surface 1001 of the liquid absorbing element 100. Therefore, when the microgroove 2101 on the heating element 200 is an annular groove, the microgroove 2101 may partially extend into the liquid absorbing element 100; and when the microgroove 2101 on the heating element 200 is a non-annular groove, in this case, two ends of the microgroove 2101 may be docked on the vaporization surface 1001 or at least partially extend into the liquid absorbing element 100. For example, as shown in FIG. 9 , an opening of a lower end of the microgroove in the microgroove portion 210 on the heating element 200 may be docked to the vaporization surface 1001, or the microgroove in the microgroove portion 210 may be partially inserted into the liquid absorbing element 100.

The heating element 200 shown in FIG. 9 is provided with a microgroove portion 210 only on the straight portion of a part of the heating wire thereof, and the straight portion of another part of the heating wire of the heating element 200 may also be provided with the microgroove portion 210 similarly.

Referring to FIG. 12 , FIG. 12 is a schematic structural diagram of an embodiment of a heating element in the vaporization core shown in FIG. 9 .

The microgroove 2101 is a linear microgroove. The extending direction of the microgroove 2101 may also be set to be parallel to the length direction of the heating element 200, and in this case, the heating element 200 is bent at the end portion of the microgroove 2101.

Referring to FIG. 13 , FIG. 13 is a schematic structural diagram of another embodiment of a heating element in the vaporization core shown in FIG. 9 .

Similarly, the microgroove 2101 is a linear microgroove. The extending direction of the microgroove 2101 may further be set to form a preset angle with the length direction of the heating element 200.

Further, in this embodiment, the cross section of the microgroove 2101 is in a shape of a triangle, a rectangle, a trapezoid, a semicircle, or an ellipse, and the depth of the microgroove 2101 may range from 5 um to 15 um. For example, the depth of the microgroove 2101 may be set to 5 um, 10 um, or 15 um.

This solution can ensure that the local resistance change of the heating element 200 is not excessive large, so that the uniformity of a local heat flow of the heating element 200 may be improved, and the heating element 200 may not be easily burned during the heating and vaporization process. In addition, by controlling the depth of the microgroove 2101 within the range of 5 um to 15 um, a separation speed of the bubbles formed after the vaporization of the to-be-vaporized liquid is apparent, so that an effect of controlling the characteristic of boiling during the vaporization process to control the mechanism of aerosol formation is achieved.

In this embodiment, the width of the microgroove 2101 may range from 5 um to 30 um, and a plurality of parallel and spaced microgrooves 2101 may be provided in the microgroove portion 210. In this case, the width of each microgroove portion 210 may be set to 3 to 5 times of the width of the microgroove 2101, and a distance between two adjacent microgrooves 210 may be set to 5 to 8 times of the width of the microgroove 210.

As described in the foregoing embodiments, the heating element 200 may be formed by bending for multiple times. In other implementations, the heating element 200 may also be formed by one or more methods such as die stamping, casting, mechanical weaving, chemical etching, or the like.

The heating element 200 may be formed by one metal wire or metal sheet, or the heating element 200 may be formed by at least two metal wires or metal sheets. Specifically, the heating element 200 may be formed by multiple metal wires or metal sheets with smaller diameters, which formed by winding or bonding or welding.

Further, referring to FIG. 14 and FIG. 15 , FIG. 14 is a schematic structural diagram of a portion of a heating wire of a heating element in the related art; and FIG. 15 is a schematic diagram of performing heating and vaporization by using a heating element in the related art.

The heating wire 300 has a smooth surface and is not provided with a microgroove structure. Therefore, when the heating wire 300 is used heat and vaporize the to-be-vaporized liquid, the volumes of bubbles formed after the vaporization of the to-be-vaporized liquid differ greatly, and the distribution of the bubbles is non-uniform.

As shown in FIG. 16 a to FIG. 16 c , FIG. 16 a to FIG. 16 c are schematic diagrams of changes of a vaporization effect when heating and vaporization are performed by using the heating element in the related art.

FIG. 16 a to FIG. 16 c are schematic diagrams of changes of a vaporization effect after an interval of 1 second, which may show that when heating and vaporization are performed by using the heating element in the related art, the positions of the formed bubbles have relatively large randomness.

Further, referring to FIG. 17 to FIG. 19 , FIG. 17 is a schematic structural diagram of a portion of a heating wire of a heating element according to this application; FIG. 18 is a partial enlarged view of the heating wire provided in FIG. 17 ; and FIG. 19 is a schematic diagram of performing heating and vaporization by using a heating element according to this application.

When heating and vaporization are performed by using the heating element 200 provided in this application, the gas formed after vaporization may form bubbles at the position of the microgroove 2101, and the bubbles gradually grow up and are released from the microgroove 2101, which may make the position of the bubbles separated from the microgroove 2101 fixed. Therefore, a plurality of microgroove portions 210 are provided at intervals on the heating element 200, so that the distribution of the released bubbles may be more uniform; and because the bubbles are more easily separated from the liquid film surface of the to-be-vaporized liquid in the microgroove 2101, the volume of the bubbles may be controlled within a certain range, so that the taste during the vaporization process can be effectively improved.

As shown in FIG. 20 a to FIG. 20 c , FIG. 20 a to FIG. 20 c are schematic diagrams of changes of a vaporization effect when heating and vaporization are performed by using a heating element according to this application.

Similarly, FIG. 20 a to FIG. 20 c are schematic diagrams of changes of a vaporization effect after an interval of 1 second respectively. The figures may show that the vaporization bubbles formed on the heating element 200 may all be formed at the position of the microgroove portion, so that the positions where the vaporization bubbles are formed are stable.

In this embodiment, the heating element 200 may be formed by one heating wire.

As shown in FIG. 21 a to FIG. 21 c , FIGS. 21 a to 21 c are schematic diagrams of changes of a vaporization effect when heating and vaporization are performed by using another heating element provided by this application.

Similarly, FIG. 21 a to FIG. 21 c are schematic diagrams of changes of a vaporization effect after an interval of 1 second respectively. The figures may show that the vaporization bubbles formed on the heating element 200 may all be formed at the position of the microgroove portion, so that the positions where the vaporization bubbles are formed are stable.

A difference between this solution and the solution described above is that in this embodiment, the heating element 200 may be formed by using two heating wires, where the two heating wires may be arranged side by side.

Further, this application further provides a vaporizer. Referring to FIG. 22 , FIG. 22 is a schematic structural diagram of an embodiment of a vaporizer according to this application.

The vaporizer 40 includes a vaporization sleeve 410, a mounting base 420, and the vaporization core 10 described above. A liquid storage cavity 411 and an air outlet channel 412 may be provided in the vaporization sleeve 410, the mounting base 420 is covered on the opening of the vaporization sleeve 410, and the mounting base 420 may be configured to fix and install the vaporization core 10.

The liquid absorbing surface 1002 of the liquid absorbing element 100 in the vaporization core 10 may be in communication with the liquid storage cavity 411, so that the to-be-vaporized liquid stored in the liquid storage cavity 411 may enter the liquid absorbing element 100; and the vaporization surface 1001 of the vaporization core 10 may be in communication with the air outlet channel 412, so that the vaporization vapor formed after the vaporization core 10 heats the to-be-vaporized liquid may be released from the air outlet channel 412.

Further, this application further provides an electronic vaporization device. Referring to FIG. 23 , FIG. 23 is a schematic structural diagram of an embodiment of an electronic vaporization device according to this application.

The electronic vaporization device 50 may include the vaporizer 40 described above and a body component 510.

The vaporizer 40 is configured to store to-be-vaporized liquid and vaporize the to-be-vaporized liquid to form vapor inhalable by a user. The body component 510 may include a power supply component, and the power supply component may be electrically connected with the heating element 200 in the vaporizer 40 to supply power to the heating element 200.

In conclusion, a person skilled in the art can easily understand that the beneficial effects of this application are as follows: In this application, by providing a microgroove on a heating element, when the heating element heats and vaporizes to-be-vaporized liquid, the to-be-vaporized liquid may more easily form a nucleation site, increasing the nucleation site during a vaporization process, and reducing the heat flux during the vaporization process, so that bubbles formed by the nucleation site may grow out of the microgroove structure, and separate from the liquid film surface of the to-be-vaporized liquid. In this way, through the arrangement of microgrooves, the characteristic of boiling during the vaporization process may be controlled, and the mechanism of aerosol formation may be controlled (that is, the location of aerosol formation and the size of the aerosol may be controlled), so that the taste during vaporization may be effectively improved.

The foregoing descriptions are merely embodiments of this application, and the patent scope of this application is not limited thereto. All equivalent structure or process changes made according to the content of this specification and accompanying drawings in this application or by directly or indirectly applying this application in other related technical fields shall fall within the protection scope of this application.

While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive. It will be understood that changes and modifications may be made by those of ordinary skill within the scope of the following claims. In particular, the present invention covers further embodiments with any combination of features from different embodiments described above and below. Additionally, statements made herein characterizing the invention refer to an embodiment of the invention and not necessarily all embodiments.

The terms used in the claims should be construed to have the broadest reasonable interpretation consistent with the foregoing description. For example, the use of the article “a” or “the” in introducing an element should not be interpreted as being exclusive of a plurality of elements. Likewise, the recitation of “or” should be interpreted as being inclusive, such that the recitation of “A or B” is not exclusive of “A and B,” unless it is clear from the context or the foregoing description that only one of A and B is intended. Further, the recitation of “at least one of A, B and C” should be interpreted as one or more of a group of elements consisting of A, B and C, and should not be interpreted as requiring at least one of each of the listed elements A, B and C, regardless of whether A, B and C are related as categories or otherwise. Moreover, the recitation of “A, B and/or C” or “at least one of A, B or C” should be interpreted as including any singular entity from the listed elements, e.g., A, any subset from the listed elements, e.g., A and B, or the entire list of elements A, B and C. 

What is claimed is:
 1. A heating element for vaporization, comprising: a surface provided with a microgroove portion, the microgroove portion being arranged at least on one side of the heating element that is away from a preset liquid absorbing element, the microgroove portion comprising a microgroove, an opening of the microgroove being connected with the preset liquid absorbing element, wherein the heating element is configured to be connected with the preset liquid absorbing element to heat and vaporize to-be-vaporized liquid.
 2. The heating element of claim 1, wherein the microgroove comprises a groove provided on the surface of the heating element, or wherein the microgroove portion comprises at least two protrusions arranged on the surface of the heating element, and the microgroove is formed between two adjacent protrusions.
 3. The heating element of claim 1, wherein the heating element comprises a metal wire, wherein the microgroove comprises an arc-shaped groove provided on the surface of the metal wire, or wherein the microgroove comprises a linear groove provided on the surface of the metal wire.
 4. The heating element of claim 3, wherein the microgroove comprises the arc-shaped groove provided on the surface of the metal wire, wherein the arc-shaped groove comprises an annular groove provided on the surface of the metal wire, or wherein the arc-shaped groove comprises a spiral groove provided on the surface of the metal wire.
 5. The heating element of claim 3, wherein the microgroove comprises the linear groove provided on the surface of the metal wire, wherein an extending direction of the linear groove is perpendicular to a length direction of the metal wire, or wherein the extending direction of the linear groove is parallel to a length direction of the metal wire, and the metal wire is bent at an end portion of the linear groove.
 6. The heating element of claim 3, further comprising: a plurality of microgroove portions, the plurality of microgroove portions being arranged at intervals sequentially along a length direction of the metal wire.
 7. The heating element of claim 6, wherein each of the plurality of microgroove portions is provided with a plurality of microgrooves provided in parallel at intervals, and a width of each microgroove portion of the plurality of microgroove portions is 3 to 5 times of a width of each microgroove of the plurality of microgrooves.
 8. The heating element of claim 6, wherein a distance between two adjacent microgroove portions of the plurality of microgroove portions is 5 to 8 times of a width of each microgroove portion of the plurality of microgroove portions.
 9. The heating element of claim 1, wherein a depth of each microgroove of the plurality of microgrooves ranges from 5 um to 15 um, and a width of each microgroove ranges from 5 um to 30 um.
 10. The heating element of claim 1, wherein a cross section of each microgroove of the plurality of microgrooves is triangular, rectangular, trapezoidal, semicircular, or elliptical.
 11. A vaporization core, comprising: a liquid absorbing element; and the heating element of claim 1, wherein the liquid absorbing element comprises a vaporization surface and a liquid absorbing surface, the liquid absorbing element being configured to allow to-be-vaporized liquid to enter from the liquid absorbing surface and to reach the vaporization surface after passing through the liquid absorbing element, wherein the heating element is connected with the liquid absorbing element, the heating element being arranged on one side of the vaporization surface and configured to heat and vaporize the to-be-vaporized liquid passing through the vaporization surface, and wherein the microgroove portion is arranged at at least on one side of the heating element that is away from the vaporization surface, the microgroove portion comprising a microgroove, an opening of the microgroove being connected with the vaporization surface.
 12. The vaporization core of claim 11, wherein the liquid absorbing element comprises a vaporization hole, the vaporization surface being arranged on an inner wall of the vaporization hole, and wherein the heating element comprises a spirally coiled metal wire and is fixedly connected with the inner wall of the vaporization hole.
 13. A vaporizer, comprising: a vaporization sleeve; a mounting base; and the vaporization core of claim
 11. 14. An electronic vaporization device, comprising: the vaporizer of claim 13 configured to store to-be-vaporized liquid and to vaporize the to-be-vaporized liquid to form vapor inhalable by a user; and a body component configured to supply power to the vaporizer. 